Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. What’s three times further out than the planet Neptune, ...

While for most people Pluto is the most distant planet in the Solar System, things get a lot more fuzzy once you pass Neptune and enter the realm of trans-Neptunian objects (TNOs). Pluto is probably ...

This captivating video explores Sedna, one of the most distant and mysterious dwarf planets in our solar system. Discovered in 2003, Sedna orbits the Sun once every 11,400 years, traveling through icy ...

It is truly a far-reaching debate: does Sedna, the most distant object ever discovered in our Solar System, have a moon? And if it does, why haven't we seen it yet? A group of British astronomers has ...

Sedna, a distant dwarf world once dubbed “Planet X,” is making its closest approach to the Sun in centuries — a narrow window between 2075 and 2076 that could allow a spacecraft to reach it using ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Scientists have long struggled to explain the existence of ...